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Title:

CHEMSITRY, RHEOLOGY, AND ENGINEERING PROPERTIES OF MANGANESE-TREATED ASPHALTS AND ASPHALT MIXTURES

Accession Number:

00472631

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/309041163

Abstract:

Summarized are the results of an experimental program to evaluate the chemistry, rheology, and engineering properties of manganese-treated asphalts and asphalt mixtures. The study was conducted by five universities. The experimental program involved two asphalt sources, three grades of asphalt cement, three levels of manganese treatment, four aggregates, and two air void contents. Static and repeated-load indirect tensile, Marshall stability, Hveem stability, and direct tension tests were performed on mixtures cured for 28 days at 140 deg F. Resilient moduli were measured at various times during the curing period. Tests were conducted on the asphalt before and after curing on Ottawa sand and in the California tilt-oven durability apparatus. Tests included both chemical and physical tests, including penetration, viscosity, and creep. Based on the findings of the study, it would appear that the modifier is capable of improving the high-temperature stiffness and strength of asphalt concrete. Principal application areas include thick sections of asphalt concrete in new construction and thick overlays. Treated mixtures should not be expected to prevent reflection cracking or to perform in thin lifts over high deflection bases. Laboratory testing programs should be performed to evaluate the effect of crude source, asphalt-concrete grade, and aggregate. Desired mixture properties and hence treatment levels should consider the end use of the asphalt-concrete mixture.

Supplemental Notes:

Publication of this paper sponsored by Committee on Characteristics of Bituminous Materials. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Monograph Accession #:

01418832

Authors:

Epps, Jon
Petersen, J Claine
Kennedy, Thomas W
Anderson, David
Haas, Ralph

Pagination:

pp 106-119

Publication Date:

1986

Serial:

Transportation Research Record

Issue Number: 1096
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

65th Annual Meeting of the Transportation Research Board

Location: Washington District of Columbia, United States
Date: 1986-1-13 to 1986-1-16

ISBN:

309041163

Media Type:

Print

Features:

Figures (12) ; References (10) ; Tables (6)

Old TRIS Terms:

Subject Areas:

Geotechnology; Highways; Materials; I31: Bituminous Binders and Materials

Files:

TRIS, TRB

Created Date:

Aug 31 1987 12:00AM

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